Biomaterials can be broadly classified into four categories: metals, ceramics, polymers, and composites. Metals like titanium and stainless steel are commonly used for orthopedic implants due to their strength and biocompatibility. Ceramics, such as hydroxyapatite, are often used in dental and bone repair applications. Polymers like polylactic acid (PLA) and polyglycolic acid (PGA) are extensively used in drug delivery systems and tissue engineering. Composites combine two or more materials to achieve desired properties for specific applications.
